Photos: Unusual Olympic events

Calling all mall walkers! You have a shot at Olympic gold! Racewalking is a long-distance foot race, but don't take off running. One foot must be in contact with the ground at all times.

Calling all mall walkers! You have a shot at Olympic gold! Racewalking is a long-distance foot race, but don't take off running. One foot must be in contact with the ground at all times. (Jeff J Mitchell/Getty Images)

Also known as ping-pong, table tennis is represented in the Olympics with both singles and doubles events -- proof that all those years of beer pong in college were good for something.

Also known as ping-pong, table tennis is represented in the Olympics with both singles and doubles events -- proof that all those years of beer pong in college were good for something. (Saeed Khan/AFP/Getty Images)